聚脲弹性体力学性能及爆炸防护的研究进展  

Research Progress of Mechanical Properties and Blast Protection of Polyurea Elastomer

作　　者：王旭[1] 吕平[1] 闫帅 方志强 WANG Xu;LV Ping;YAN Shuai;FANG Zhi-qiang(School of Civil Engineering,Qingdao University of Technology,Qingdao 266033,China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033

出　　处：《材料保护》2022年第8期150-157,共8页Materials Protection

基　　金：国家自然科学基金项目(51578298)资助。

摘　　要：聚脲弹性体分子结构独特,撕裂强度、拉伸强度、断裂伸长率等力学性能优异,同时具有良好的吸能特性。大量研究表明,聚脲弹性体可以有效减轻结构在爆炸荷载下的破坏程度,因此,其在爆炸防护领域中的研究越来越广泛。简要介绍了聚脲弹性体的微观结构,阐述了其在不同应变率下的力学性能。同时以聚脲弹性体的优异的力学性能为依托,从砌体结构、钢结构两个方面出发,综述了聚脲弹性体在爆炸防护领域中的研究进展,分析认为聚脲弹性体因其优异的力学性能和良好的吸能特性会成为爆炸防护领域的研究热点,在实际工程应用中具有广阔的发展前景。Polyurea elastomer has unique molecular structure,good energy absorption characteristics and excellent mechanical properties in terms of tear strength,tensile strength and breaking elongation.A large number of studies have shown that polyurea elastomer can effectively reduce the destructiveness of the structure under explosive load.Therefore,the research on polyurea elastomer relating to blast protection is becoming more and more extensive.In this paper,the microstructure of polyurea elastomer was briefly introduced,and its mechanical properties at different strain rates were described.Besides,based on the excellent mechanical properties of polyurea elastomer,the research progress of polyurea elastomer relating with blast protection was reviewed from the aspects of masonry structure and steel structure.The analysis showed that polyurea elastomers would become a research hotspot in blast protection field due to their excellent mechanical properties and good energy absorption characteristics and would have broad development prospects in practical engineering applications.

关 键 词：聚脲弹性体 力学性能 爆炸防护 砌体结构 钢结构 

分 类 号：TB324[一般工业技术—材料科学与工程] O383.2[理学—流体力学]